./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label00.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b49fbf439c6d5cf33b5a144a2382feff3c2b3eeb58f6496beb37cacb5d6cd07 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:49:47,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:49:47,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 22:49:47,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:49:47,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:49:47,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:49:47,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:49:47,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:49:47,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:49:47,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:49:47,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:49:47,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:49:47,787 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:49:47,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:49:47,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:49:47,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:49:47,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:49:47,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:49:47,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:49:47,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:49:47,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:49:47,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:49:47,793 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:49:47,793 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:49:47,794 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:49:47,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:49:47,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:49:47,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:49:47,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:49:47,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:49:47,797 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:49:47,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:49:47,798 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:49:47,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b49fbf439c6d5cf33b5a144a2382feff3c2b3eeb58f6496beb37cacb5d6cd07 [2023-12-02 22:49:48,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:49:48,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:49:48,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:49:48,027 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:49:48,028 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:49:48,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/eca-rers2012/Problem10_label00.c [2023-12-02 22:49:50,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:49:51,001 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:49:51,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/sv-benchmarks/c/eca-rers2012/Problem10_label00.c [2023-12-02 22:49:51,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/data/2b1f8441a/9855211110594551a74467a0a5a5b73b/FLAG56a89bb95 [2023-12-02 22:49:51,031 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/data/2b1f8441a/9855211110594551a74467a0a5a5b73b [2023-12-02 22:49:51,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:49:51,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:49:51,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:49:51,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:49:51,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:49:51,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7371189e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51, skipping insertion in model container [2023-12-02 22:49:51,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,097 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:49:51,267 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/sv-benchmarks/c/eca-rers2012/Problem10_label00.c[5445,5458] [2023-12-02 22:49:51,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:49:51,395 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:49:51,425 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/sv-benchmarks/c/eca-rers2012/Problem10_label00.c[5445,5458] [2023-12-02 22:49:51,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:49:51,508 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:49:51,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51 WrapperNode [2023-12-02 22:49:51,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:49:51,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:49:51,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:49:51,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:49:51,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,622 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2023-12-02 22:49:51,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:49:51,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:49:51,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:49:51,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:49:51,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,683 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:49:51,700 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:49:51,700 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:49:51,700 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:49:51,701 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:49:51" (1/1) ... [2023-12-02 22:49:51,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:49:51,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:49:51,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:49:51,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:49:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:49:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:49:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:49:51,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:49:51,831 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:49:51,832 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:49:52,785 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:49:55,120 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:49:55,120 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:49:55,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:49:55 BoogieIcfgContainer [2023-12-02 22:49:55,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:49:55,122 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:49:55,122 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:49:55,131 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:49:55,131 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:49:55" (1/1) ... [2023-12-02 22:49:55,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:49:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:49:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-12-02 22:49:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-12-02 22:49:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 22:49:55,188 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:49:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:49:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:49:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:49:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:49:55,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-02 22:49:55,458 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-02 22:49:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:49:55,458 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:49:55,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:49:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:50:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:50:06,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:50:06,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2023-12-02 22:50:06,812 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2023-12-02 22:50:06,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 22:50:06,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:50:06,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:50:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:50:16,170 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 22:50:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:50:16,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 26 states and 42 transitions. [2023-12-02 22:50:16,802 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2023-12-02 22:50:16,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 22:50:16,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:50:16,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:50:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:50:25,438 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 22:50:25,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:50:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 45 transitions. [2023-12-02 22:50:25,615 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2023-12-02 22:50:25,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 22:50:25,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:50:25,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:50:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:50:37,450 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 22:50:37,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:50:37,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2023-12-02 22:50:37,855 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2023-12-02 22:50:37,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 22:50:37,856 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-12-02 22:50:37,864 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 22:50:38,057 INFO L560 CodeCheckObserver]: Invariant with dag size 23 [2023-12-02 22:50:38,065 INFO L560 CodeCheckObserver]: Invariant with dag size 18 [2023-12-02 22:50:38,066 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 22:50:38,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:50:38 ImpRootNode [2023-12-02 22:50:38,067 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 22:50:38,068 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 22:50:38,068 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 22:50:38,068 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 22:50:38,069 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:49:55" (3/4) ... [2023-12-02 22:50:38,071 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 22:50:38,091 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 195 nodes and edges [2023-12-02 22:50:38,093 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 22:50:38,095 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 22:50:38,097 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 22:50:38,263 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 22:50:38,264 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 22:50:38,264 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 22:50:38,264 INFO L158 Benchmark]: Toolchain (without parser) took 47229.57ms. Allocated memory was 157.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 119.7MB in the beginning and 672.3MB in the end (delta: -552.7MB). Peak memory consumption was 655.7MB. Max. memory is 16.1GB. [2023-12-02 22:50:38,265 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory was 54.9MB in the beginning and 54.8MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:50:38,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.89ms. Allocated memory is still 157.3MB. Free memory was 119.2MB in the beginning and 91.1MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-02 22:50:38,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.25ms. Allocated memory is still 157.3MB. Free memory was 91.1MB in the beginning and 123.5MB in the end (delta: -32.4MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-12-02 22:50:38,266 INFO L158 Benchmark]: Boogie Preprocessor took 76.82ms. Allocated memory is still 157.3MB. Free memory was 123.5MB in the beginning and 119.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 22:50:38,266 INFO L158 Benchmark]: RCFGBuilder took 3421.31ms. Allocated memory was 157.3MB in the beginning and 237.0MB in the end (delta: 79.7MB). Free memory was 119.3MB in the beginning and 143.8MB in the end (delta: -24.5MB). Peak memory consumption was 156.7MB. Max. memory is 16.1GB. [2023-12-02 22:50:38,267 INFO L158 Benchmark]: CodeCheck took 42944.75ms. Allocated memory was 237.0MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 143.8MB in the beginning and 684.9MB in the end (delta: -541.1MB). Peak memory consumption was 587.1MB. Max. memory is 16.1GB. [2023-12-02 22:50:38,267 INFO L158 Benchmark]: Witness Printer took 196.08ms. Allocated memory is still 1.4GB. Free memory was 684.9MB in the beginning and 672.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 22:50:38,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 137 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 59 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 445 SyntacticMatches, 26 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 40.6s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 598 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 20/44 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 155]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((6 < a19) && (14 == a4)) && (a12 == 0)) || ((((((a19 < 6) || ((a1 + 12) < 0)) || (38 < a1)) || !((a10 == 0))) && (14 == a4)) && (a12 == 0))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((!((a19 == 6)) || (38 < a1)) || !((a10 == 0))) && (14 == a4)) && (a12 == 0)) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory was 54.9MB in the beginning and 54.8MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.89ms. Allocated memory is still 157.3MB. Free memory was 119.2MB in the beginning and 91.1MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.25ms. Allocated memory is still 157.3MB. Free memory was 91.1MB in the beginning and 123.5MB in the end (delta: -32.4MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.82ms. Allocated memory is still 157.3MB. Free memory was 123.5MB in the beginning and 119.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3421.31ms. Allocated memory was 157.3MB in the beginning and 237.0MB in the end (delta: 79.7MB). Free memory was 119.3MB in the beginning and 143.8MB in the end (delta: -24.5MB). Peak memory consumption was 156.7MB. Max. memory is 16.1GB. * CodeCheck took 42944.75ms. Allocated memory was 237.0MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 143.8MB in the beginning and 684.9MB in the end (delta: -541.1MB). Peak memory consumption was 587.1MB. Max. memory is 16.1GB. * Witness Printer took 196.08ms. Allocated memory is still 1.4GB. Free memory was 684.9MB in the beginning and 672.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 22:50:38,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b394f8-d3d6-4770-aa8d-5fea211aea5c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE